4 * $Id: file.c,v 1.258 2002/01/10 11:05:48 guy Exp $
6 * Ethereal - Network traffic analyzer
7 * By Gerald Combs <gerald@ethereal.com>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
47 #ifdef HAVE_SYS_STAT_H
55 #ifdef NEED_SNPRINTF_H
56 # include "snprintf.h"
59 #ifdef NEED_STRERROR_H
63 #ifdef HAVE_SYS_TYPES_H
64 # include <sys/types.h>
67 #ifdef HAVE_NETINET_IN_H
68 # include <netinet/in.h>
72 #include <filesystem.h>
76 #include "gtk/color_utils.h"
83 #include "simple_dialog.h"
84 #include "progress_dlg.h"
86 #include "statusbar.h"
88 #include "gtk/proto_draw.h"
89 #include "gtk/packet_win.h"
90 #include "dfilter/dfilter.h"
91 #include "conversation.h"
92 #include "reassemble.h"
94 #include "gtk/colors.h"
95 #include "epan_dissect.h"
97 extern GtkWidget *packet_list, *byte_nb_ptr, *tree_view;
100 gboolean auto_scroll_live;
103 static guint32 firstsec, firstusec;
104 static guint32 prevsec, prevusec;
106 static void read_packet(capture_file *cf, long offset);
108 static void rescan_packets(capture_file *cf, const char *action,
109 gboolean refilter, gboolean redissect);
111 static void set_selected_row(int row);
113 static void freeze_clist(capture_file *cf);
114 static void thaw_clist(capture_file *cf);
116 static char *file_rename_error_message(int err);
117 static char *file_close_error_message(int err);
118 static gboolean copy_binary_file(char *from_filename, char *to_filename);
120 /* Update the progress bar this many times when reading a file. */
121 #define N_PROGBAR_UPDATES 100
123 /* Number of "frame_data" structures per memory chunk.
124 XXX - is this the right number? */
125 #define FRAME_DATA_CHUNK_SIZE 1024
128 open_cap_file(char *fname, gboolean is_tempfile, capture_file *cf)
135 wth = wtap_open_offline(fname, &err, TRUE);
139 /* Find the size of the file. */
141 if (fstat(fd, &cf_stat) < 0) {
147 /* The open succeeded. Close whatever capture file we had open,
148 and fill in the information for this file. */
151 /* Initialize the table of conversations. */
152 epan_conversation_init();
154 /* Initialize protocol-specific variables */
155 init_all_protocols();
157 /* Initialize the common data structures for fragment reassembly.
158 Must be done *after* "init_all_protocols()", as "init_all_protocols()"
159 may free up space for fragments, which it finds by using the
160 data structures that "reassemble_init()" frees. */
163 /* We're about to start reading the file. */
164 cf->state = FILE_READ_IN_PROGRESS;
168 cf->f_len = cf_stat.st_size;
170 /* Set the file name because we need it to set the follow stream filter.
171 XXX - is that still true? We need it for other reasons, though,
173 cf->filename = g_strdup(fname);
175 /* Indicate whether it's a permanent or temporary file. */
176 cf->is_tempfile = is_tempfile;
178 /* If it's a temporary capture buffer file, mark it as not saved. */
179 cf->user_saved = !is_tempfile;
181 cf->cd_t = wtap_file_type(cf->wth);
183 cf->marked_count = 0;
184 cf->drops_known = FALSE;
188 cf->snap = wtap_snapshot_length(cf->wth);
189 cf->progbar_quantum = 0;
190 cf->progbar_nextstep = 0;
191 firstsec = 0, firstusec = 0;
192 prevsec = 0, prevusec = 0;
194 cf->plist_chunk = g_mem_chunk_new("frame_data_chunk",
196 FRAME_DATA_CHUNK_SIZE * sizeof(frame_data),
198 g_assert(cf->plist_chunk);
203 simple_dialog(ESD_TYPE_CRIT, NULL,
204 file_open_error_message(err, FALSE), fname);
208 /* Reset everything to a pristine state */
210 close_cap_file(capture_file *cf)
212 /* Die if we're in the middle of reading a file. */
213 g_assert(cf->state != FILE_READ_IN_PROGRESS);
215 /* Destroy all popup packet windows, as they refer to packets in the
216 capture file we're closing. */
217 destroy_packet_wins();
223 /* We have no file open... */
224 if (cf->filename != NULL) {
225 /* If it's a temporary file, remove it. */
227 unlink(cf->filename);
228 g_free(cf->filename);
231 /* ...which means we have nothing to save. */
232 cf->user_saved = FALSE;
234 if (cf->plist_chunk != NULL) {
235 g_mem_chunk_destroy(cf->plist_chunk);
236 cf->plist_chunk = NULL;
238 if (cf->rfcode != NULL) {
239 dfilter_free(cf->rfcode);
243 cf->plist_end = NULL;
244 unselect_packet(cf); /* nothing to select */
245 cf->first_displayed = NULL;
246 cf->last_displayed = NULL;
248 /* Clear the packet list. */
249 gtk_clist_freeze(GTK_CLIST(packet_list));
250 gtk_clist_clear(GTK_CLIST(packet_list));
251 gtk_clist_thaw(GTK_CLIST(packet_list));
253 /* Clear any file-related status bar messages.
254 XXX - should be "clear *ALL* file-related status bar messages;
255 will there ever be more than one on the stack? */
256 statusbar_pop_file_msg();
258 /* Restore the standard title bar message. */
259 set_main_window_name("The Ethereal Network Analyzer");
261 /* Disable all menu items that make sense only if you have a capture. */
262 set_menus_for_capture_file(FALSE);
263 set_menus_for_unsaved_capture_file(FALSE);
264 set_menus_for_captured_packets(FALSE);
265 set_menus_for_selected_packet(FALSE);
266 set_menus_for_capture_in_progress(FALSE);
267 set_menus_for_selected_tree_row(FALSE);
269 /* We have no file open. */
270 cf->state = FILE_CLOSED;
273 /* Set the file name in the status line, in the name for the main window,
274 and in the name for the main window's icon. */
276 set_display_filename(capture_file *cf)
280 static const gchar done_fmt_nodrops[] = " File: %s";
281 static const gchar done_fmt_drops[] = " File: %s Drops: %u";
283 gchar *win_name_fmt = "%s - Ethereal";
286 if (!cf->is_tempfile) {
287 /* Get the last component of the file name, and put that in the
289 name_ptr = get_basename(cf->filename);
291 /* The file we read is a temporary file from a live capture;
292 we don't mention its name in the status bar. */
293 name_ptr = "<capture>";
296 if (cf->drops_known) {
297 msg_len = strlen(name_ptr) + strlen(done_fmt_drops) + 64;
298 done_msg = g_malloc(msg_len);
299 snprintf(done_msg, msg_len, done_fmt_drops, name_ptr, cf->drops);
301 msg_len = strlen(name_ptr) + strlen(done_fmt_nodrops);
302 done_msg = g_malloc(msg_len);
303 snprintf(done_msg, msg_len, done_fmt_nodrops, name_ptr);
305 statusbar_push_file_msg(done_msg);
308 msg_len = strlen(name_ptr) + strlen(win_name_fmt) + 1;
309 win_name = g_malloc(msg_len);
310 snprintf(win_name, msg_len, win_name_fmt, name_ptr);
311 set_main_window_name(win_name);
316 read_cap_file(capture_file *cf, int *err)
318 gchar *name_ptr, *load_msg, *load_fmt = " Loading: %s...";
321 char errmsg_errno[1024+1];
322 gchar err_str[2048+1];
329 name_ptr = get_basename(cf->filename);
331 msg_len = strlen(name_ptr) + strlen(load_fmt) + 2;
332 load_msg = g_malloc(msg_len);
333 snprintf(load_msg, msg_len, load_fmt, name_ptr);
334 statusbar_push_file_msg(load_msg);
336 /* Update the progress bar when it gets to this value. */
337 cf->progbar_nextstep = 0;
338 /* When we reach the value that triggers a progress bar update,
339 bump that value by this amount. */
340 cf->progbar_quantum = cf->f_len/N_PROGBAR_UPDATES;
349 progbar = create_progress_dlg(load_msg, "Stop", &stop_flag);
352 while ((wtap_read(cf->wth, err, &data_offset))) {
353 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
354 when we update it, we have to run the GTK+ main loop to get it
355 to repaint what's pending, and doing so may involve an "ioctl()"
356 to see if there's any pending input from an X server, and doing
357 that for every packet can be costly, especially on a big file. */
358 if (data_offset >= cf->progbar_nextstep) {
359 file_pos = lseek(cf->filed, 0, SEEK_CUR);
360 prog_val = (gfloat) file_pos / (gfloat) cf->f_len;
361 update_progress_dlg(progbar, prog_val);
362 cf->progbar_nextstep += cf->progbar_quantum;
366 /* Well, the user decided to abort the read. Destroy the progress
367 bar, close the capture file, and return READ_ABORTED so our caller
368 can do whatever is appropriate when that happens. */
369 destroy_progress_dlg(progbar);
370 cf->state = FILE_READ_ABORTED; /* so that we're allowed to close it */
371 gtk_clist_thaw(GTK_CLIST(packet_list)); /* undo our freeze */
373 return (READ_ABORTED);
375 read_packet(cf, data_offset);
378 /* We're done reading the file; destroy the progress bar. */
379 destroy_progress_dlg(progbar);
381 /* We're done reading sequentially through the file. */
382 cf->state = FILE_READ_DONE;
384 /* Close the sequential I/O side, to free up memory it requires. */
385 wtap_sequential_close(cf->wth);
387 /* Allow the protocol dissectors to free up memory that they
388 * don't need after the sequential run-through of the packets. */
389 postseq_cleanup_all_protocols();
391 /* Set the file encapsulation type now; we don't know what it is until
392 we've looked at all the packets, as we don't know until then whether
393 there's more than one type (and thus whether it's
394 WTAP_ENCAP_PER_PACKET). */
395 cf->lnk_t = wtap_file_encap(cf->wth);
397 cf->current_frame = cf->first_displayed;
400 statusbar_pop_file_msg();
401 set_display_filename(cf);
403 /* Enable menu items that make sense if you have a capture file you've
405 set_menus_for_capture_file(TRUE);
406 set_menus_for_unsaved_capture_file(!cf->user_saved);
408 /* Enable menu items that make sense if you have some captured packets. */
409 set_menus_for_captured_packets(TRUE);
411 /* If we have any displayed packets to select, select the first of those
412 packets by making the first row the selected row. */
413 if (cf->first_displayed != NULL)
414 gtk_signal_emit_by_name(GTK_OBJECT(packet_list), "select_row", 0);
417 /* Put up a message box noting that the read failed somewhere along
418 the line. Don't throw out the stuff we managed to read, though,
422 case WTAP_ERR_UNSUPPORTED_ENCAP:
423 errmsg = "The capture file is for a network type that Ethereal doesn't support.";
426 case WTAP_ERR_CANT_READ:
427 errmsg = "An attempt to read from the file failed for"
428 " some unknown reason.";
431 case WTAP_ERR_SHORT_READ:
432 errmsg = "The capture file appears to have been cut short"
433 " in the middle of a packet.";
436 case WTAP_ERR_BAD_RECORD:
437 errmsg = "The capture file appears to be damaged or corrupt.";
441 snprintf(errmsg_errno, sizeof(errmsg_errno),
442 "An error occurred while reading the"
443 " capture file: %s.", wtap_strerror(*err));
444 errmsg = errmsg_errno;
447 snprintf(err_str, sizeof err_str, errmsg);
448 simple_dialog(ESD_TYPE_CRIT, NULL, err_str);
451 return (READ_SUCCESS);
456 start_tail_cap_file(char *fname, gboolean is_tempfile, capture_file *cf)
461 err = open_cap_file(fname, is_tempfile, cf);
463 /* Disable menu items that make no sense if you're currently running
465 set_menus_for_capture_in_progress(TRUE);
467 /* Enable menu items that make sense if you have some captured
468 packets (yes, I know, we don't have any *yet*). */
469 set_menus_for_captured_packets(TRUE);
471 for (i = 0; i < cf->cinfo.num_cols; i++) {
472 if (get_column_resize_type(cf->cinfo.col_fmt[i]) == RESIZE_LIVE)
473 gtk_clist_set_column_auto_resize(GTK_CLIST(packet_list), i, TRUE);
475 gtk_clist_set_column_auto_resize(GTK_CLIST(packet_list), i, FALSE);
476 gtk_clist_set_column_width(GTK_CLIST(packet_list), i,
477 cf->cinfo.col_width[i]);
478 gtk_clist_set_column_resizeable(GTK_CLIST(packet_list), i, TRUE);
482 statusbar_push_file_msg(" <live capture in progress>");
488 continue_tail_cap_file(capture_file *cf, int to_read, int *err)
490 long data_offset = 0;
492 gtk_clist_freeze(GTK_CLIST(packet_list));
494 while (to_read != 0 && (wtap_read(cf->wth, err, &data_offset))) {
495 if (cf->state == FILE_READ_ABORTED) {
496 /* Well, the user decided to exit Ethereal. Break out of the
497 loop, and let the code below (which is called even if there
498 aren't any packets left to read) exit. */
501 read_packet(cf, data_offset);
505 gtk_clist_thaw(GTK_CLIST(packet_list));
507 /* XXX - this cheats and looks inside the packet list to find the final
509 if (auto_scroll_live && cf->plist_end != NULL)
510 gtk_clist_moveto(GTK_CLIST(packet_list),
511 GTK_CLIST(packet_list)->rows - 1, -1, 1.0, 1.0);
513 if (cf->state == FILE_READ_ABORTED) {
514 /* Well, the user decided to exit Ethereal. Return READ_ABORTED
515 so that our caller can kill off the capture child process;
516 this will cause an EOF on the pipe from the child, so
517 "finish_tail_cap_file()" will be called, and it will clean up
520 } else if (*err != 0) {
521 /* We got an error reading the capture file.
522 XXX - pop up a dialog box? */
525 return (READ_SUCCESS);
529 finish_tail_cap_file(capture_file *cf, int *err)
533 gtk_clist_freeze(GTK_CLIST(packet_list));
535 while ((wtap_read(cf->wth, err, &data_offset))) {
536 if (cf->state == FILE_READ_ABORTED) {
537 /* Well, the user decided to abort the read. Break out of the
538 loop, and let the code below (which is called even if there
539 aren't any packets left to read) exit. */
542 read_packet(cf, data_offset);
545 if (cf->state == FILE_READ_ABORTED) {
546 /* Well, the user decided to abort the read. We're only called
547 when the child capture process closes the pipe to us (meaning
548 it's probably exited), so we can just close the capture
549 file; we return READ_ABORTED so our caller can do whatever
550 is appropriate when that happens. */
556 if (auto_scroll_live && cf->plist_end != NULL)
557 /* XXX - this cheats and looks inside the packet list to find the final
559 gtk_clist_moveto(GTK_CLIST(packet_list),
560 GTK_CLIST(packet_list)->rows - 1, -1, 1.0, 1.0);
562 /* We're done reading sequentially through the file. */
563 cf->state = FILE_READ_DONE;
565 /* We're done reading sequentially through the file; close the
566 sequential I/O side, to free up memory it requires. */
567 wtap_sequential_close(cf->wth);
569 /* Allow the protocol dissectors to free up memory that they
570 * don't need after the sequential run-through of the packets. */
571 postseq_cleanup_all_protocols();
573 /* Set the file encapsulation type now; we don't know what it is until
574 we've looked at all the packets, as we don't know until then whether
575 there's more than one type (and thus whether it's
576 WTAP_ENCAP_PER_PACKET). */
577 cf->lnk_t = wtap_file_encap(cf->wth);
579 /* Pop the "<live capture in progress>" message off the status bar. */
580 statusbar_pop_file_msg();
582 set_display_filename(cf);
584 /* Enable menu items that make sense if you're not currently running
586 set_menus_for_capture_in_progress(FALSE);
588 /* Enable menu items that make sense if you have a capture file
589 you've finished reading. */
590 set_menus_for_capture_file(TRUE);
591 set_menus_for_unsaved_capture_file(!cf->user_saved);
594 /* We got an error reading the capture file.
595 XXX - pop up a dialog box? */
598 return (READ_SUCCESS);
600 #endif /* HAVE_LIBPCAP */
603 color_filter_t *colorf;
605 } apply_color_filter_args;
608 * If no color filter has been applied, apply this one.
609 * (The "if no color filter has been applied" is to handle the case where
610 * more than one color filter matches the packet.)
613 apply_color_filter(gpointer filter_arg, gpointer argp)
615 color_filter_t *colorf = filter_arg;
616 apply_color_filter_args *args = argp;
618 if (colorf->c_colorfilter != NULL && args->colorf == NULL) {
619 if (dfilter_apply_edt(colorf->c_colorfilter, args->edt))
620 args->colorf = colorf;
625 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
626 union wtap_pseudo_header *pseudo_header, const u_char *buf,
629 apply_color_filter_args args;
631 gboolean create_proto_tree = FALSE;
635 /* We don't yet have a color filter to apply. */
638 /* If we don't have the time stamp of the first packet in the
639 capture, it's because this is the first packet. Save the time
640 stamp of this packet as the time stamp of the first packet. */
641 if (!firstsec && !firstusec) {
642 firstsec = fdata->abs_secs;
643 firstusec = fdata->abs_usecs;
648 we have a display filter and are re-applying it;
650 we have a list of color filters;
652 allocate a protocol tree root node, so that we'll construct
653 a protocol tree against which a filter expression can be
655 if ((cf->dfcode != NULL && refilter) || filter_list != NULL)
656 create_proto_tree = TRUE;
658 /* Dissect the frame. */
659 edt = epan_dissect_new(create_proto_tree, FALSE);
662 epan_dissect_prime_dfilter(edt, cf->dfcode);
665 filter_list_prime_edt(edt);
667 epan_dissect_run(edt, pseudo_header, buf, fdata, &cf->cinfo);
670 /* If we have a display filter, apply it if we're refiltering, otherwise
671 leave the "passed_dfilter" flag alone.
673 If we don't have a display filter, set "passed_dfilter" to 1. */
674 if (cf->dfcode != NULL) {
676 if (cf->dfcode != NULL)
677 fdata->flags.passed_dfilter = dfilter_apply_edt(cf->dfcode, edt) ? 1 : 0;
679 fdata->flags.passed_dfilter = 1;
682 fdata->flags.passed_dfilter = 1;
684 /* If we have color filters, and the frame is to be displayed, apply
685 the color filters. */
686 if (fdata->flags.passed_dfilter) {
687 if (filter_list != NULL) {
689 g_slist_foreach(filter_list, apply_color_filter, &args);
694 if (fdata->flags.passed_dfilter) {
695 /* This frame passed the display filter, so add it to the clist. */
697 /* If we don't have the time stamp of the previous displayed packet,
698 it's because this is the first displayed packet. Save the time
699 stamp of this packet as the time stamp of the previous displayed
701 if (!prevsec && !prevusec) {
702 prevsec = fdata->abs_secs;
703 prevusec = fdata->abs_usecs;
706 /* Get the time elapsed between the first packet and this packet. */
707 compute_timestamp_diff(&fdata->rel_secs, &fdata->rel_usecs,
708 fdata->abs_secs, fdata->abs_usecs, firstsec, firstusec);
710 /* If it's greater than the current elapsed time, set the elapsed time
711 to it (we check for "greater than" so as not to be confused by
712 time moving backwards). */
713 if ((gint32)cf->esec < fdata->rel_secs
714 || ((gint32)cf->esec == fdata->rel_secs && (gint32)cf->eusec < fdata->rel_usecs)) {
715 cf->esec = fdata->rel_secs;
716 cf->eusec = fdata->rel_usecs;
719 /* Get the time elapsed between the previous displayed packet and
721 compute_timestamp_diff(&fdata->del_secs, &fdata->del_usecs,
722 fdata->abs_secs, fdata->abs_usecs, prevsec, prevusec);
723 prevsec = fdata->abs_secs;
724 prevusec = fdata->abs_usecs;
726 epan_dissect_fill_in_columns(edt);
728 /* If we haven't yet seen the first frame, this is it.
730 XXX - we must do this before we add the row to the display,
731 as, if the display's GtkCList's selection mode is
732 GTK_SELECTION_BROWSE, when the first entry is added to it,
733 "select_packet()" will be called, and it will fetch the row
734 data for the 0th row, and will get a null pointer rather than
735 "fdata", as "gtk_clist_append()" won't yet have returned and
736 thus "gtk_clist_set_row_data()" won't yet have been called.
738 We thus need to leave behind bread crumbs so that
739 "select_packet()" can find this frame. See the comment
740 in "select_packet()". */
741 if (cf->first_displayed == NULL)
742 cf->first_displayed = fdata;
744 /* This is the last frame we've seen so far. */
745 cf->last_displayed = fdata;
747 row = gtk_clist_append(GTK_CLIST(packet_list), cf->cinfo.col_data);
748 gtk_clist_set_row_data(GTK_CLIST(packet_list), row, fdata);
750 if (fdata->flags.marked) {
751 color_t_to_gdkcolor(&bg, &prefs.gui_marked_bg);
752 color_t_to_gdkcolor(&fg, &prefs.gui_marked_fg);
753 } else if (filter_list != NULL && (args.colorf != NULL)) {
754 bg = args.colorf->bg_color;
755 fg = args.colorf->fg_color;
760 gtk_clist_set_background(GTK_CLIST(packet_list), row, &bg);
761 gtk_clist_set_foreground(GTK_CLIST(packet_list), row, &fg);
763 /* This frame didn't pass the display filter, so it's not being added
764 to the clist, and thus has no row. */
767 epan_dissect_free(edt);
772 read_packet(capture_file *cf, long offset)
774 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
775 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
776 const u_char *buf = wtap_buf_ptr(cf->wth);
779 frame_data *plist_end;
782 /* Allocate the next list entry, and add it to the list. */
783 fdata = g_mem_chunk_alloc(cf->plist_chunk);
788 fdata->data_src = NULL;
789 fdata->pkt_len = phdr->len;
790 fdata->cap_len = phdr->caplen;
791 fdata->file_off = offset;
792 fdata->lnk_t = phdr->pkt_encap;
793 fdata->abs_secs = phdr->ts.tv_sec;
794 fdata->abs_usecs = phdr->ts.tv_usec;
795 fdata->flags.encoding = CHAR_ASCII;
796 fdata->flags.visited = 0;
797 fdata->flags.marked = 0;
801 edt = epan_dissect_new(TRUE, FALSE);
802 epan_dissect_prime_dfilter(edt, cf->rfcode);
803 epan_dissect_run(edt, pseudo_header, buf, fdata, NULL);
804 passed = dfilter_apply_edt(cf->rfcode, edt);
805 epan_dissect_free(edt);
808 plist_end = cf->plist_end;
809 fdata->prev = plist_end;
810 if (plist_end != NULL)
811 plist_end->next = fdata;
814 cf->plist_end = fdata;
817 fdata->num = cf->count;
818 add_packet_to_packet_list(fdata, cf, pseudo_header, buf, TRUE);
820 /* XXX - if we didn't have read filters, or if we could avoid
821 allocating the "frame_data" structure until we knew whether
822 the frame passed the read filter, we could use a G_ALLOC_ONLY
825 ...but, at least in one test I did, where I just made the chunk
826 a G_ALLOC_ONLY chunk and read in a huge capture file, it didn't
827 seem to save a noticeable amount of time or space. */
828 g_mem_chunk_free(cf->plist_chunk, fdata);
833 filter_packets(capture_file *cf, gchar *dftext)
837 if (dftext == NULL) {
838 /* The new filter is an empty filter (i.e., display all packets). */
842 * We have a filter; try to compile it.
844 if (!dfilter_compile(dftext, &dfcode)) {
845 /* The attempt failed; report an error. */
846 simple_dialog(ESD_TYPE_CRIT, NULL, dfilter_error_msg);
851 if (dfcode == NULL) {
852 /* Yes - free the filter text, and set it to null. */
858 /* We have a valid filter. Replace the current filter. */
859 if (cf->dfilter != NULL)
861 cf->dfilter = dftext;
862 if (cf->dfcode != NULL)
863 dfilter_free(cf->dfcode);
866 /* Now rescan the packet list, applying the new filter, but not
867 throwing away information constructed on a previous pass. */
868 rescan_packets(cf, "Filtering", TRUE, FALSE);
873 colorize_packets(capture_file *cf)
875 rescan_packets(cf, "Colorizing", FALSE, FALSE);
879 redissect_packets(capture_file *cf)
881 rescan_packets(cf, "Reprocessing", TRUE, TRUE);
884 /* Rescan the list of packets, reconstructing the CList.
886 "action" describes why we're doing this; it's used in the progress
889 "refilter" is TRUE if we need to re-evaluate the filter expression.
891 "redissect" is TRUE if we need to make the dissectors reconstruct
892 any state information they have (because a preference that affects
893 some dissector has changed, meaning some dissector might construct
894 its state differently from the way it was constructed the last time). */
896 rescan_packets(capture_file *cf, const char *action, gboolean refilter,
902 guint32 progbar_quantum;
903 guint32 progbar_nextstep;
905 frame_data *selected_frame;
909 /* Which frame, if any, is the currently selected frame?
910 XXX - should the selected frame or the focus frame be the "current"
911 frame, that frame being the one from which "Find Frame" searches
913 selected_frame = cf->current_frame;
915 /* We don't yet know what row that frame will be on, if any, after we
916 rebuild the clist, however. */
920 /* We need to re-initialize all the state information that protocols
921 keep, because some preference that controls a dissector has changed,
922 which might cause the state information to be constructed differently
923 by that dissector. */
925 /* Initialize the table of conversations. */
926 epan_conversation_init();
928 /* Initialize protocol-specific variables */
929 init_all_protocols();
931 /* Initialize the common data structures for fragment reassembly.
932 Must be done *after* "init_all_protocols()", as "init_all_protocols()"
933 may free up space for fragments, which it finds by using the
934 data structures that "reassemble_init()" frees. */
938 /* Freeze the packet list while we redo it, so we don't get any
939 screen updates while it happens. */
940 gtk_clist_freeze(GTK_CLIST(packet_list));
943 gtk_clist_clear(GTK_CLIST(packet_list));
945 /* We don't yet know which will be the first and last frames displayed. */
946 cf->first_displayed = NULL;
947 cf->last_displayed = NULL;
949 /* Iterate through the list of frames. Call a routine for each frame
950 to check whether it should be displayed and, if so, add it to
957 /* Update the progress bar when it gets to this value. */
958 progbar_nextstep = 0;
959 /* When we reach the value that triggers a progress bar update,
960 bump that value by this amount. */
961 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
962 /* Count of packets at which we've looked. */
966 progbar = create_progress_dlg(action, "Stop", &stop_flag);
968 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
969 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
970 when we update it, we have to run the GTK+ main loop to get it
971 to repaint what's pending, and doing so may involve an "ioctl()"
972 to see if there's any pending input from an X server, and doing
973 that for every packet can be costly, especially on a big file. */
974 if (count >= progbar_nextstep) {
975 /* let's not divide by zero. I should never be started
976 * with count == 0, so let's assert that
978 g_assert(cf->count > 0);
980 update_progress_dlg(progbar, (gfloat) count / cf->count);
982 progbar_nextstep += progbar_quantum;
986 /* Well, the user decided to abort the filtering. Just stop.
988 XXX - go back to the previous filter? Users probably just
989 want not to wait for a filtering operation to finish;
990 unless we cancel by having no filter, reverting to the
991 previous filter will probably be even more expensive than
992 continuing the filtering, as it involves going back to the
993 beginning and filtering, and even with no filter we currently
994 have to re-generate the entire clist, which is also expensive.
996 I'm not sure what Network Monitor does, but it doesn't appear
997 to give you an unfiltered display if you cancel. */
1004 /* Since all state for the frame was destroyed, mark the frame
1005 * as not visited, free the GSList referring to the state
1006 * data (the per-frame data itself was freed by
1007 * "init_all_protocols()"), and null out the GSList pointer. */
1008 fdata->flags.visited = 0;
1010 g_slist_free(fdata->pfd);
1013 if (fdata->data_src) { /* release data source list */
1014 g_slist_free(fdata->data_src);
1016 fdata->data_src = NULL;
1019 wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1020 cf->pd, fdata->cap_len);
1022 row = add_packet_to_packet_list(fdata, cf, &cf->pseudo_header, cf->pd,
1024 if (fdata == selected_frame)
1029 /* Clear out what remains of the visited flags and per-frame data
1032 XXX - that may cause various forms of bogosity when dissecting
1033 these frames, as they won't have been seen by this sequential
1034 pass, but the only alternative I see is to keep scanning them
1035 even though the user requested that the scan stop, and that
1036 would leave the user stuck with an Ethereal grinding on
1037 until it finishes. Should we just stick them with that? */
1038 for (; fdata != NULL; fdata = fdata->next) {
1039 fdata->flags.visited = 0;
1041 g_slist_free(fdata->pfd);
1044 if (fdata->data_src) {
1045 g_slist_free(fdata->data_src);
1047 fdata->data_src = NULL;
1051 /* We're done filtering the packets; destroy the progress bar. */
1052 destroy_progress_dlg(progbar);
1054 /* Unfreeze the packet list. */
1055 gtk_clist_thaw(GTK_CLIST(packet_list));
1057 if (selected_row != -1) {
1058 /* The frame that was selected passed the filter; select it, make it
1059 the focus row, and make it visible. */
1060 set_selected_row(selected_row);
1061 finfo_selected = NULL;
1063 /* The selected frame didn't pass the filter; make the first frame
1064 the current frame, and leave it unselected. */
1065 unselect_packet(cf);
1066 cf->current_frame = cf->first_displayed;
1071 print_packets(capture_file *cf, print_args_t *print_args)
1077 guint32 progbar_quantum;
1078 guint32 progbar_nextstep;
1080 gint *col_widths = NULL;
1082 gboolean print_separator;
1083 char *line_buf = NULL;
1084 int line_buf_len = 256;
1088 epan_dissect_t *edt = NULL;
1090 cf->print_fh = open_print_dest(print_args->to_file, print_args->dest);
1091 if (cf->print_fh == NULL)
1092 return FALSE; /* attempt to open destination failed */
1094 print_preamble(cf->print_fh, print_args->format);
1096 if (print_args->print_summary) {
1097 /* We're printing packet summaries. Allocate the line buffer at
1098 its initial length. */
1099 line_buf = g_malloc(line_buf_len + 1);
1101 /* Find the widths for each of the columns - maximum of the
1102 width of the title and the width of the data - and print
1103 the column titles. */
1104 col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
1107 for (i = 0; i < cf->cinfo.num_cols; i++) {
1108 /* Don't pad the last column. */
1109 if (i == cf->cinfo.num_cols - 1)
1112 col_widths[i] = strlen(cf->cinfo.col_title[i]);
1113 data_width = get_column_char_width(get_column_format(i));
1114 if (data_width > col_widths[i])
1115 col_widths[i] = data_width;
1118 /* Find the length of the string for this column. */
1119 column_len = strlen(cf->cinfo.col_title[i]);
1120 if (col_widths[i] > column_len)
1121 column_len = col_widths[i];
1123 /* Make sure there's room in the line buffer for the column; if not,
1124 double its length. */
1125 line_len += column_len + 1; /* "+1" for space or \n */
1126 if (line_len > line_buf_len) {
1128 line_buf = g_realloc(line_buf, line_buf_len + 1);
1131 /* Right-justify the packet number column. */
1132 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
1133 sprintf(cp, "%*s", col_widths[i], cf->cinfo.col_title[i]);
1135 sprintf(cp, "%-*s", col_widths[i], cf->cinfo.col_title[i]);
1137 if (i == cf->cinfo.num_cols - 1)
1143 print_line(cf->print_fh, print_args->format, line_buf);
1146 print_separator = FALSE;
1148 /* Update the progress bar when it gets to this value. */
1149 progbar_nextstep = 0;
1150 /* When we reach the value that triggers a progress bar update,
1151 bump that value by this amount. */
1152 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1153 /* Count of packets at which we've looked. */
1157 progbar = create_progress_dlg("Printing", "Stop", &stop_flag);
1159 /* Iterate through the list of packets, printing the packets that
1160 were selected by the current display filter. */
1161 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1162 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1163 when we update it, we have to run the GTK+ main loop to get it
1164 to repaint what's pending, and doing so may involve an "ioctl()"
1165 to see if there's any pending input from an X server, and doing
1166 that for every packet can be costly, especially on a big file. */
1167 if (count >= progbar_nextstep) {
1168 /* let's not divide by zero. I should never be started
1169 * with count == 0, so let's assert that
1171 g_assert(cf->count > 0);
1173 update_progress_dlg(progbar, (gfloat) count / cf->count);
1175 progbar_nextstep += progbar_quantum;
1179 /* Well, the user decided to abort the printing. Just stop.
1181 XXX - note that what got generated before they did that
1182 will get printed, as we're piping to a print program; we'd
1183 have to write to a file and then hand that to the print
1184 program to make it actually not print anything. */
1189 /* Check to see if we are suppressing unmarked packets, if so,
1190 * suppress them and then proceed to check for visibility.
1192 if (((print_args->suppress_unmarked && fdata->flags.marked ) ||
1193 !(print_args->suppress_unmarked)) && fdata->flags.passed_dfilter) {
1194 wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1195 cf->pd, fdata->cap_len);
1196 if (print_args->print_summary) {
1197 /* Fill in the column information, but don't bother creating
1198 the logical protocol tree. */
1199 edt = epan_dissect_new(FALSE, FALSE);
1200 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
1201 epan_dissect_fill_in_columns(edt);
1204 for (i = 0; i < cf->cinfo.num_cols; i++) {
1205 /* Find the length of the string for this column. */
1206 column_len = strlen(cf->cinfo.col_data[i]);
1207 if (col_widths[i] > column_len)
1208 column_len = col_widths[i];
1210 /* Make sure there's room in the line buffer for the column; if not,
1211 double its length. */
1212 line_len += column_len + 1; /* "+1" for space or \n */
1213 if (line_len > line_buf_len) {
1215 line_buf = g_realloc(line_buf, line_buf_len + 1);
1218 /* Right-justify the packet number column. */
1219 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
1220 sprintf(cp, "%*s", col_widths[i], cf->cinfo.col_data[i]);
1222 sprintf(cp, "%-*s", col_widths[i], cf->cinfo.col_data[i]);
1224 if (i == cf->cinfo.num_cols - 1)
1230 print_line(cf->print_fh, print_args->format, line_buf);
1232 if (print_separator)
1233 print_line(cf->print_fh, print_args->format, "\n");
1235 /* Create the logical protocol tree, complete with the display
1236 representation of the items; we don't need the columns here,
1238 edt = epan_dissect_new(TRUE, TRUE);
1239 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, NULL);
1241 /* Print the information in that tree. */
1242 proto_tree_print(FALSE, print_args, (GNode *)edt->tree,
1243 fdata, cf->print_fh);
1245 if (print_args->print_hex) {
1246 /* Print the full packet data as hex. */
1247 print_hex_data(cf->print_fh, print_args->format, fdata);
1250 /* Print a blank line if we print anything after this. */
1251 print_separator = TRUE;
1253 epan_dissect_free(edt);
1257 /* We're done printing the packets; destroy the progress bar. */
1258 destroy_progress_dlg(progbar);
1260 if (col_widths != NULL)
1262 if (line_buf != NULL)
1265 print_finale(cf->print_fh, print_args->format);
1267 close_print_dest(print_args->to_file, cf->print_fh);
1269 cf->print_fh = NULL;
1274 /* Scan through the packet list and change all columns that use the
1275 "command-line-specified" time stamp format to use the current
1276 value of that format. */
1278 change_time_formats(capture_file *cf)
1283 guint32 progbar_quantum;
1284 guint32 progbar_nextstep;
1290 /* Are there any columns with time stamps in the "command-line-specified"
1293 XXX - we have to force the "column is writable" flag on, as it
1294 might be off from the last frame that was dissected. */
1295 col_set_writable(&cf->cinfo, TRUE);
1296 if (!check_col(&cf->cinfo, COL_CLS_TIME)) {
1297 /* No, there aren't any columns in that format, so we have no work
1302 /* Freeze the packet list while we redo it, so we don't get any
1303 screen updates while it happens. */
1306 /* Update the progress bar when it gets to this value. */
1307 progbar_nextstep = 0;
1308 /* When we reach the value that triggers a progress bar update,
1309 bump that value by this amount. */
1310 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1311 /* Count of packets at which we've looked. */
1315 progbar = create_progress_dlg("Changing time display", "Stop", &stop_flag);
1317 /* Iterate through the list of packets, checking whether the packet
1318 is in a row of the summary list and, if so, whether there are
1319 any columns that show the time in the "command-line-specified"
1320 format and, if so, update that row. */
1321 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1322 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1323 when we update it, we have to run the GTK+ main loop to get it
1324 to repaint what's pending, and doing so may involve an "ioctl()"
1325 to see if there's any pending input from an X server, and doing
1326 that for every packet can be costly, especially on a big file. */
1327 if (count >= progbar_nextstep) {
1328 /* let's not divide by zero. I should never be started
1329 * with count == 0, so let's assert that
1331 g_assert(cf->count > 0);
1333 update_progress_dlg(progbar, (gfloat) count / cf->count);
1335 progbar_nextstep += progbar_quantum;
1339 /* Well, the user decided to abort the redisplay. Just stop.
1341 XXX - this leaves the time field in the old format in
1342 frames we haven't yet processed. So it goes; should we
1343 simply not offer them the option of stopping? */
1349 /* Find what row this packet is in. */
1350 row = gtk_clist_find_row_from_data(GTK_CLIST(packet_list), fdata);
1353 /* This packet is in the summary list, on row "row". */
1355 for (i = 0; i < cf->cinfo.num_cols; i++) {
1356 if (cf->cinfo.fmt_matx[i][COL_CLS_TIME]) {
1357 /* This is one of the columns that shows the time in
1358 "command-line-specified" format; update it. */
1359 cf->cinfo.col_buf[i][0] = '\0';
1360 col_set_cls_time(fdata, &cf->cinfo, i);
1361 gtk_clist_set_text(GTK_CLIST(packet_list), row, i,
1362 cf->cinfo.col_data[i]);
1368 /* We're done redisplaying the packets; destroy the progress bar. */
1369 destroy_progress_dlg(progbar);
1371 /* Set the column widths of those columns that show the time in
1372 "command-line-specified" format. */
1373 pl_style = gtk_widget_get_style(packet_list);
1374 for (i = 0; i < cf->cinfo.num_cols; i++) {
1375 if (cf->cinfo.fmt_matx[i][COL_CLS_TIME]) {
1376 gtk_clist_set_column_width(GTK_CLIST(packet_list), i,
1377 gdk_string_width(pl_style->font, get_column_longest_string(COL_CLS_TIME)));
1381 /* Unfreeze the packet list. */
1386 find_packet(capture_file *cf, dfilter_t *sfcode)
1388 frame_data *start_fd;
1390 frame_data *new_fd = NULL;
1393 guint32 progbar_quantum;
1394 guint32 progbar_nextstep;
1396 gboolean frame_matched;
1398 epan_dissect_t *edt;
1400 start_fd = cf->current_frame;
1401 if (start_fd != NULL) {
1402 /* Iterate through the list of packets, starting at the packet we've
1403 picked, calling a routine to run the filter on the packet, see if
1404 it matches, and stop if so. */
1408 /* Update the progress bar when it gets to this value. */
1409 progbar_nextstep = 0;
1410 /* When we reach the value that triggers a progress bar update,
1411 bump that value by this amount. */
1412 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1415 progbar = create_progress_dlg("Searching", "Cancel", &stop_flag);
1419 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1420 when we update it, we have to run the GTK+ main loop to get it
1421 to repaint what's pending, and doing so may involve an "ioctl()"
1422 to see if there's any pending input from an X server, and doing
1423 that for every packet can be costly, especially on a big file. */
1424 if (count >= progbar_nextstep) {
1425 /* let's not divide by zero. I should never be started
1426 * with count == 0, so let's assert that
1428 g_assert(cf->count > 0);
1430 update_progress_dlg(progbar, (gfloat) count / cf->count);
1432 progbar_nextstep += progbar_quantum;
1436 /* Well, the user decided to abort the search. Go back to the
1437 frame where we started. */
1442 /* Go past the current frame. */
1443 if (cf->sbackward) {
1444 /* Go on to the previous frame. */
1445 fdata = fdata->prev;
1447 fdata = cf->plist_end; /* wrap around */
1449 /* Go on to the next frame. */
1450 fdata = fdata->next;
1452 fdata = cf->plist; /* wrap around */
1457 /* Is this packet in the display? */
1458 if (fdata->flags.passed_dfilter) {
1459 /* Yes. Does it match the search filter? */
1460 wtap_seek_read(cf->wth, fdata->file_off, &cf->pseudo_header,
1461 cf->pd, fdata->cap_len);
1462 edt = epan_dissect_new(TRUE, FALSE);
1463 epan_dissect_prime_dfilter(edt, sfcode);
1464 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, NULL);
1465 frame_matched = dfilter_apply_edt(sfcode, edt);
1466 epan_dissect_free(edt);
1467 if (frame_matched) {
1469 break; /* found it! */
1473 if (fdata == start_fd) {
1474 /* We're back to the frame we were on originally, and that frame
1475 doesn't match the search filter. The search failed. */
1480 /* We're done scanning the packets; destroy the progress bar. */
1481 destroy_progress_dlg(progbar);
1484 if (new_fd != NULL) {
1485 /* We found a frame. Find what row it's in. */
1486 row = gtk_clist_find_row_from_data(GTK_CLIST(packet_list), new_fd);
1487 g_assert(row != -1);
1489 /* Select that row, make it the focus row, and make it visible. */
1490 set_selected_row(row);
1491 return TRUE; /* success */
1493 return FALSE; /* failure */
1497 goto_frame(capture_file *cf, guint fnumber)
1502 for (fdata = cf->plist; fdata != NULL && fdata->num < fnumber; fdata = fdata->next)
1506 return NO_SUCH_FRAME; /* we didn't find that frame */
1507 if (!fdata->flags.passed_dfilter)
1508 return FRAME_NOT_DISPLAYED; /* the frame with that number isn't displayed */
1510 /* We found that frame, and it's currently being displayed.
1511 Find what row it's in. */
1512 row = gtk_clist_find_row_from_data(GTK_CLIST(packet_list), fdata);
1513 g_assert(row != -1);
1515 /* Select that row, make it the focus row, and make it visible. */
1516 set_selected_row(row);
1520 /* Select the packet on a given row. */
1522 select_packet(capture_file *cf, int row)
1526 /* Get the frame data struct pointer for this frame */
1527 fdata = (frame_data *) gtk_clist_get_row_data(GTK_CLIST(packet_list), row);
1529 if (fdata == NULL) {
1530 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
1531 the first entry is added to it by "real_insert_row()", that row
1532 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
1533 our version and the vanilla GTK+ version).
1535 This means that a "select-row" signal is emitted; this causes
1536 "packet_list_select_cb()" to be called, which causes "select_packet()"
1539 "select_packet()" fetches, above, the data associated with the
1540 row that was selected; however, as "gtk_clist_append()", which
1541 called "real_insert_row()", hasn't yet returned, we haven't yet
1542 associated any data with that row, so we get back a null pointer.
1544 We can't assume that there's only one frame in the frame list,
1545 either, as we may be filtering the display.
1547 We therefore assume that, if "row" is 0, i.e. the first row
1548 is being selected, and "cf->first_displayed" equals
1549 "cf->last_displayed", i.e. there's only one frame being
1550 displayed, that frame is the frame we want.
1552 This means we have to set "cf->first_displayed" and
1553 "cf->last_displayed" before adding the row to the
1554 GtkCList; see the comment in "add_packet_to_packet_list()". */
1556 if (row == 0 && cf->first_displayed == cf->last_displayed)
1557 fdata = cf->first_displayed;
1560 /* Record that this frame is the current frame. */
1561 cf->current_frame = fdata;
1563 /* Get the data in that frame. */
1564 wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1565 cf->pd, fdata->cap_len);
1567 /* Create the logical protocol tree. */
1568 if (cf->edt != NULL) {
1569 epan_dissect_free(cf->edt);
1572 /* We don't need the columns here. */
1573 cf->edt = epan_dissect_new(TRUE, TRUE);
1574 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
1577 /* Display the GUI protocol tree and hex dump.
1578 XXX - why does the protocol tree not show up if we call
1579 "proto_tree_draw()" before calling "add_byte_views()"? */
1580 clear_tree_and_hex_views();
1581 add_byte_views(cf->current_frame, cf->edt->tree, tree_view,
1583 proto_tree_draw(cf->edt->tree, tree_view);
1585 /* A packet is selected. */
1586 set_menus_for_selected_packet(TRUE);
1589 /* Unselect the selected packet, if any. */
1591 unselect_packet(capture_file *cf)
1593 /* Destroy the epan_dissect_t for the unselected packet. */
1594 if (cf->edt != NULL) {
1595 epan_dissect_free(cf->edt);
1599 /* Clear out the display of that packet. */
1600 clear_tree_and_hex_views();
1602 /* No packet is selected. */
1603 set_menus_for_selected_packet(FALSE);
1605 /* No protocol tree means no selected field. */
1609 /* Set the selected row and the focus row of the packet list to the specified
1610 row, and make it visible if it's not currently visible. */
1612 set_selected_row(int row)
1614 if (gtk_clist_row_is_visible(GTK_CLIST(packet_list), row) != GTK_VISIBILITY_FULL)
1615 gtk_clist_moveto(GTK_CLIST(packet_list), row, -1, 0.0, 0.0);
1617 /* XXX - why is there no "gtk_clist_set_focus_row()", so that we
1618 can make the row for the frame we found the focus row?
1622 http://www.gnome.org/mailing-lists/archives/gtk-list/2000-January/0038.shtml
1625 GTK_CLIST(packet_list)->focus_row = row;
1627 gtk_clist_select_row(GTK_CLIST(packet_list), row, -1);
1630 /* Unset the selected protocol tree field, if any. */
1632 unselect_field(void)
1634 statusbar_pop_field_msg();
1635 finfo_selected = NULL;
1636 set_menus_for_selected_tree_row(FALSE);
1640 * Mark a particular frame.
1643 mark_frame(capture_file *cf, frame_data *frame)
1645 frame->flags.marked = TRUE;
1650 * Unmark a particular frame.
1653 unmark_frame(capture_file *cf, frame_data *frame)
1655 frame->flags.marked = FALSE;
1660 freeze_clist(capture_file *cf)
1664 /* Make the column sizes static, so they don't adjust while
1665 we're reading the capture file (freezing the clist doesn't
1666 seem to suffice). */
1667 for (i = 0; i < cf->cinfo.num_cols; i++)
1668 gtk_clist_set_column_auto_resize(GTK_CLIST(packet_list), i, FALSE);
1669 gtk_clist_freeze(GTK_CLIST(packet_list));
1673 thaw_clist(capture_file *cf)
1677 for (i = 0; i < cf->cinfo.num_cols; i++) {
1678 if (get_column_resize_type(cf->cinfo.col_fmt[i]) == RESIZE_MANUAL) {
1679 /* Set this column's width to the appropriate value. */
1680 gtk_clist_set_column_width(GTK_CLIST(packet_list), i,
1681 cf->cinfo.col_width[i]);
1683 /* Make this column's size dynamic, so that it adjusts to the
1684 appropriate size. */
1685 gtk_clist_set_column_auto_resize(GTK_CLIST(packet_list), i, TRUE);
1688 gtk_clist_thaw(GTK_CLIST(packet_list));
1690 /* Hopefully, the columns have now gotten their appropriate sizes;
1691 make them resizeable - a column that auto-resizes cannot be
1692 resized by the user, and *vice versa*. */
1693 for (i = 0; i < cf->cinfo.num_cols; i++)
1694 gtk_clist_set_column_resizeable(GTK_CLIST(packet_list), i, TRUE);
1698 save_cap_file(char *fname, capture_file *cf, gboolean save_filtered, gboolean save_marked,
1701 gchar *from_filename;
1702 gchar *name_ptr, *save_msg, *save_fmt = " Saving: %s...";
1708 struct wtap_pkthdr hdr;
1709 union wtap_pseudo_header pseudo_header;
1712 name_ptr = get_basename(fname);
1713 msg_len = strlen(name_ptr) + strlen(save_fmt) + 2;
1714 save_msg = g_malloc(msg_len);
1715 snprintf(save_msg, msg_len, save_fmt, name_ptr);
1716 statusbar_push_file_msg(save_msg);
1719 if (!save_filtered && !save_marked && save_format == cf->cd_t) {
1720 /* We're not filtering packets, and we're saving it in the format
1721 it's already in, so we can just move or copy the raw data. */
1723 /* In this branch, we set "err" only if we get an error, so we
1724 must first clear it. */
1726 if (cf->is_tempfile) {
1727 /* The file being saved is a temporary file from a live
1728 capture, so it doesn't need to stay around under that name;
1729 first, try renaming the capture buffer file to the new name. */
1731 if (rename(cf->filename, fname) == 0) {
1732 /* That succeeded - there's no need to copy the source file. */
1733 from_filename = NULL;
1736 if (errno == EXDEV) {
1737 /* They're on different file systems, so we have to copy the
1740 from_filename = cf->filename;
1742 /* The rename failed, but not because they're on different
1743 file systems - put up an error message. (Or should we
1744 just punt and try to copy? The only reason why I'd
1745 expect the rename to fail and the copy to succeed would
1746 be if we didn't have permission to remove the file from
1747 the temporary directory, and that might be fixable - but
1748 is it worth requiring the user to go off and fix it?) */
1750 simple_dialog(ESD_TYPE_CRIT, NULL,
1751 file_rename_error_message(err), fname);
1757 from_filename = cf->filename;
1760 /* It's a permanent file, so we should copy it, and not remove the
1763 from_filename = cf->filename;
1765 /* Copy the file, if we haven't moved it. */
1767 if (!copy_binary_file(from_filename, fname)) {
1772 /* Either we're filtering packets, or we're saving in a different
1773 format; we can't do that by copying or moving the capture file,
1774 we have to do it by writing the packets out in Wiretap. */
1775 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap, &err);
1777 simple_dialog(ESD_TYPE_CRIT, NULL,
1778 file_open_error_message(err, TRUE), fname);
1782 /* XXX - have a way to save only the packets currently selected by
1783 the display filter or the marked ones.
1785 If we do that, should we make that file the current file? If so,
1786 it means we can no longer get at the other packets. What does
1788 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1789 /* XXX - do a progress bar */
1790 if ((!save_filtered && !save_marked) ||
1791 (save_filtered && fdata->flags.passed_dfilter && !save_marked) ||
1792 (save_marked && fdata->flags.marked && !save_filtered) ||
1793 (save_filtered && save_marked && fdata->flags.passed_dfilter &&
1794 fdata->flags.marked)) {
1796 - we're saving all frames, or
1797 - we're saving filtered frames and this one passed the display filter or
1798 - we're saving marked frames (and it has been marked) or
1799 - we're saving filtered _and_ marked frames,
1801 hdr.ts.tv_sec = fdata->abs_secs;
1802 hdr.ts.tv_usec = fdata->abs_usecs;
1803 hdr.caplen = fdata->cap_len;
1804 hdr.len = fdata->pkt_len;
1805 hdr.pkt_encap = fdata->lnk_t;
1806 wtap_seek_read(cf->wth, fdata->file_off, &pseudo_header,
1807 pd, fdata->cap_len);
1809 if (!wtap_dump(pdh, &hdr, &pseudo_header, pd, &err)) {
1810 simple_dialog(ESD_TYPE_CRIT, NULL,
1811 file_write_error_message(err), fname);
1812 wtap_dump_close(pdh, &err);
1818 if (!wtap_dump_close(pdh, &err)) {
1819 simple_dialog(ESD_TYPE_WARN, NULL,
1820 file_close_error_message(err), fname);
1827 /* Pop the "Saving:" message off the status bar. */
1828 statusbar_pop_file_msg();
1830 if (!save_filtered && !save_marked) {
1831 /* We saved the entire capture, not just some packets from it.
1832 Open and read the file we saved it to.
1834 XXX - this is somewhat of a waste; we already have the
1835 packets, all this gets us is updated file type information
1836 (which we could just stuff into "cf"), and having the new
1837 file be the one we have opened and from which we're reading
1838 the data, and it means we have to spend time opening and
1839 reading the file, which could be a significant amount of
1840 time if the file is large. */
1841 cf->user_saved = TRUE;
1843 if ((err = open_cap_file(fname, FALSE, cf)) == 0) {
1844 /* XXX - report errors if this fails? */
1845 switch (read_cap_file(cf, &err)) {
1849 /* Just because we got an error, that doesn't mean we were unable
1850 to read any of the file; we handle what we could get from the
1855 /* The user bailed out of re-reading the capture file; the
1856 capture file has been closed - just return (without
1857 changing any menu settings; "close_cap_file()" set them
1858 correctly for the "no capture file open" state). */
1861 set_menus_for_unsaved_capture_file(FALSE);
1869 file_open_error_message(int err, gboolean for_writing)
1872 static char errmsg_errno[1024+1];
1876 case WTAP_ERR_NOT_REGULAR_FILE:
1877 errmsg = "The file \"%s\" is a \"special file\" or socket or other non-regular file.";
1880 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
1881 case WTAP_ERR_UNSUPPORTED:
1882 /* Seen only when opening a capture file for reading. */
1883 errmsg = "The file \"%s\" is not a capture file in a format Ethereal understands.";
1886 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
1887 /* Seen only when opening a capture file for writing. */
1888 errmsg = "Ethereal does not support writing capture files in that format.";
1891 case WTAP_ERR_UNSUPPORTED_ENCAP:
1892 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
1894 errmsg = "Ethereal cannot save this capture in that format.";
1896 errmsg = "The file \"%s\" is a capture for a network type that Ethereal doesn't support.";
1899 case WTAP_ERR_BAD_RECORD:
1900 errmsg = "The file \"%s\" appears to be damaged or corrupt.";
1903 case WTAP_ERR_CANT_OPEN:
1905 errmsg = "The file \"%s\" could not be created for some unknown reason.";
1907 errmsg = "The file \"%s\" could not be opened for some unknown reason.";
1910 case WTAP_ERR_SHORT_READ:
1911 errmsg = "The file \"%s\" appears to have been cut short"
1912 " in the middle of a packet or other data.";
1915 case WTAP_ERR_SHORT_WRITE:
1916 errmsg = "A full header couldn't be written to the file \"%s\".";
1921 errmsg = "The path to the file \"%s\" does not exist.";
1923 errmsg = "The file \"%s\" does not exist.";
1928 errmsg = "You do not have permission to create or write to the file \"%s\".";
1930 errmsg = "You do not have permission to read the file \"%s\".";
1934 errmsg = "\"%s\" is a directory (folder), not a file.";
1938 snprintf(errmsg_errno, sizeof(errmsg_errno),
1939 "The file \"%%s\" could not be opened: %s.",
1940 wtap_strerror(err));
1941 errmsg = errmsg_errno;
1948 file_rename_error_message(int err)
1951 static char errmsg_errno[1024+1];
1956 errmsg = "The path to the file \"%s\" does not exist.";
1960 errmsg = "You do not have permission to move the capture file to \"%s\".";
1964 snprintf(errmsg_errno, sizeof(errmsg_errno),
1965 "The file \"%%s\" could not be moved: %s.",
1966 wtap_strerror(err));
1967 errmsg = errmsg_errno;
1974 file_read_error_message(int err)
1976 static char errmsg_errno[1024+1];
1978 snprintf(errmsg_errno, sizeof(errmsg_errno),
1979 "An error occurred while reading from the file \"%%s\": %s.",
1980 wtap_strerror(err));
1981 return errmsg_errno;
1985 file_write_error_message(int err)
1988 static char errmsg_errno[1024+1];
1993 errmsg = "The file \"%s\" could not be saved because there is no space left on the file system.";
1998 errmsg = "The file \"%s\" could not be saved because you are too close to, or over, your disk quota.";
2003 snprintf(errmsg_errno, sizeof(errmsg_errno),
2004 "An error occurred while writing to the file \"%%s\": %s.",
2005 wtap_strerror(err));
2006 errmsg = errmsg_errno;
2012 /* Check for write errors - if the file is being written to an NFS server,
2013 a write error may not show up until the file is closed, as NFS clients
2014 might not send writes to the server until the "write()" call finishes,
2015 so that the write may fail on the server but the "write()" may succeed. */
2017 file_close_error_message(int err)
2020 static char errmsg_errno[1024+1];
2024 case WTAP_ERR_CANT_CLOSE:
2025 errmsg = "The file \"%s\" couldn't be closed for some unknown reason.";
2028 case WTAP_ERR_SHORT_WRITE:
2029 errmsg = "Not all the packets could be written to the file \"%s\".";
2033 errmsg = "The file \"%s\" could not be saved because there is no space left on the file system.";
2038 errmsg = "The file \"%s\" could not be saved because you are too close to, or over, your disk quota.";
2043 snprintf(errmsg_errno, sizeof(errmsg_errno),
2044 "An error occurred while closing the file \"%%s\": %s.",
2045 wtap_strerror(err));
2046 errmsg = errmsg_errno;
2053 /* Copies a file in binary mode, for those operating systems that care about
2055 * Returns TRUE on success, FALSE on failure. If a failure, it also
2056 * displays a simple dialog window with the error message.
2059 copy_binary_file(char *from_filename, char *to_filename)
2061 int from_fd, to_fd, nread, nwritten, err;
2062 guint8 pd[65536]; /* XXX - Hmm, 64K here, 64K in save_cap_file(),
2063 perhaps we should make just one 64K buffer. */
2065 /* Copy the raw bytes of the file. */
2066 from_fd = open(from_filename, O_RDONLY | O_BINARY);
2069 simple_dialog(ESD_TYPE_CRIT, NULL,
2070 file_open_error_message(err, TRUE), from_filename);
2074 /* Use open() instead of creat() so that we can pass the O_BINARY
2075 flag, which is relevant on Win32; it appears that "creat()"
2076 may open the file in text mode, not binary mode, but we want
2077 to copy the raw bytes of the file, so we need the output file
2078 to be open in binary mode. */
2079 to_fd = open(to_filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
2082 simple_dialog(ESD_TYPE_CRIT, NULL,
2083 file_open_error_message(err, TRUE), to_filename);
2088 while ((nread = read(from_fd, pd, sizeof pd)) > 0) {
2089 nwritten = write(to_fd, pd, nread);
2090 if (nwritten < nread) {
2094 err = WTAP_ERR_SHORT_WRITE;
2095 simple_dialog(ESD_TYPE_CRIT, NULL,
2096 file_write_error_message(err), to_filename);
2104 simple_dialog(ESD_TYPE_CRIT, NULL,
2105 file_read_error_message(err), from_filename);
2111 if (close(to_fd) < 0) {
2113 simple_dialog(ESD_TYPE_CRIT, NULL,
2114 file_close_error_message(err), to_filename);